ROCK SPRINGS CAPITAL MANAGEMENT LP
Latest 13F filing data - Q3 2025
Holdings (Top positions)
| Stock | Ticker | ||
|---|---|---|---|
 | MLYS | 408K | $15.48M |
 | INSM | 385K | $55.44M |
 | BCAX | 371K | $5.85M |
 | BSX | 360K | $35.17M |
 | DXCM | 317K | $21.32M |
 | ATEC | 303K | $4.40M |
 | OCUL | 300K | $3.51M |
 | TARS | 288K | $17.14M |
 | MBX | 283K | $4.95M |
 | HTFL | 250K | $8.41M |
 | CDTX | 249K | $23.88M |
 | LENZ | 236K | $11.00M |
 | IRTC | 235K | $40.42M |
 | ASND | 215K | $42.64M |
 | JANX | 210K | $5.14M |
 | ACLX | 179K | $14.69M |
 | ACHC | 170K | $4.21M |
 | SLNO | 155K | $10.45M |
 | ARGX | 143K | $105.29M |
 | MDGL | 138K | $63.18M |
Mineralys Therapeutics, Inc.
MLYS
Shares Held
408K
Value
$15.48M
Insmed Incorporated
INSM
Shares Held
385K
Value
$55.44M
Bicara Therapeutics Inc. Common Stock
BCAX
Shares Held
371K
Value
$5.85M
Boston Scientific Corporation
BSX
Shares Held
360K
Value
$35.17M
DexCom, Inc.
DXCM
Shares Held
317K
Value
$21.32M
Alphatec Holdings, Inc.
ATEC
Shares Held
303K
Value
$4.40M
Ocular Therapeutix, Inc.
OCUL
Shares Held
300K
Value
$3.51M
Tarsus Pharmaceuticals, Inc.
TARS
Shares Held
288K
Value
$17.14M
MBX Biosciences, Inc. Common Stock
MBX
Shares Held
283K
Value
$4.95M
Heartflow, Inc. Common Stock
HTFL
Shares Held
250K
Value
$8.41M
Cidara Therapeutics, Inc.
CDTX
Shares Held
249K
Value
$23.88M
LENZ Therapeutics, Inc.
LENZ
Shares Held
236K
Value
$11.00M
iRhythm Technologies, Inc.
IRTC
Shares Held
235K
Value
$40.42M
Ascendis Pharma A/S
ASND
Shares Held
215K
Value
$42.64M
Janux Therapeutics, Inc.
JANX
Shares Held
210K
Value
$5.14M
Arcellx, Inc.
ACLX
Shares Held
179K
Value
$14.69M
Acadia Healthcare Company, Inc.
ACHC
Shares Held
170K
Value
$4.21M
Soleno Therapeutics, Inc.
SLNO
Shares Held
155K
Value
$10.45M
argenx SE
ARGX
Shares Held
143K
Value
$105.29M
Madrigal Pharmaceuticals, Inc.
MDGL
Shares Held
138K
Value
$63.18M